Planet Signal Extraction for the Terrestrial Planet Finder Interferometer

Details Planet Signal Extraction for the Terrestrial Planet Finder Interferometer Planet Signal Extraction for the Terrestrial Planet Finder Interferometer

Mar 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aj....131.1822d&link_type=abstract

The Astronomical Journal, Volume 131, Issue 3, pp. 1822-1836.

Astronomy and Astrophysics

Astronomy

6

Methods: Data Analysis, Stars: Planetary Systems, Techniques: High Angular Resolution, Techniques: Image Processing, Techniques: Interferometric

Scientific paper

Signal extraction is a vital link between science and systems-engineering requirements. In this paper we present a Terrestrial Planet Finder (TPF) interferometer planet-signal-extraction algorithm and demonstrate the performance of several nulling-interferometer designs on canonical TPF astronomical scenes. We create the output response of a linear phase-chopping dual Bracewell nulling interferometer and a matrix version of the correlation method employed to generate dirty images. We derive general and specific map parameters, such as signal-to-noise ratio, signal-to-artifact ratio, and detection confidence, used for individual maps or comparing array architectures. We implement a matrix form of CLEAN that removes map artifacts, produces reconstructed images, and retrieves planetary signals. Monte Carlo simulations show that some fixed-length structurally connected interferometer configurations can detect Earth-like planets for systems at 10 pc in the presence of stellar Poisson noise. Since angular resolution depends on baseline length, a design that can vary array configuration for each specific scene is superior to an interferometer with a fixed array length. Thus, a flexible free-flying architecture should satisfy the science requirements for more TPF candidates, compared to a fixed-length structurally connected architecture.

Affiliated with

Also associated with

No associations

Rating

Planet Signal Extraction for the Terrestrial Planet Finder Interferometer does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Planet Signal Extraction for the Terrestrial Planet Finder Interferometer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Planet Signal Extraction for the Terrestrial Planet Finder Interferometer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1579693